--- rxvt-2.7.8/autoconf/configure.in~
+++ rxvt-2.7.8/autoconf/configure.in
@@ -663,7 +663,7 @@
 #ifdef UTMPX_FILE
 	UTMPX_FILE,
 #endif
-    "/var/adm/utmpx", "/etc/utmpx", NULL };
+    "/var/run/utmpx", "/var/adm/utmpx", "/etc/utmpx", NULL };
     FILE *a, *f=fopen("conftestval", "w");
     struct stat statu, statux;
     if (!f) exit(1);